WO2023195385A1 - Valve and valve assembly method - Google Patents

Valve and valve assembly method Download PDF

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Publication number
WO2023195385A1
WO2023195385A1 PCT/JP2023/012492 JP2023012492W WO2023195385A1 WO 2023195385 A1 WO2023195385 A1 WO 2023195385A1 JP 2023012492 W JP2023012492 W JP 2023012492W WO 2023195385 A1 WO2023195385 A1 WO 2023195385A1
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WO
WIPO (PCT)
Prior art keywords
retainer
case
valve
enlarged diameter
sleeve
Prior art date
Application number
PCT/JP2023/012492
Other languages
French (fr)
Japanese (ja)
Inventor
健太 古川
直己 西村
優 出口
Original Assignee
イーグル工業株式会社
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Application filed by イーグル工業株式会社 filed Critical イーグル工業株式会社
Publication of WO2023195385A1 publication Critical patent/WO2023195385A1/en

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K3/00—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing
    • F16K3/22—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing with sealing faces shaped as surfaces of solids of revolution
    • F16K3/24—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing with sealing faces shaped as surfaces of solids of revolution with cylindrical valve members
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K31/00—Actuating devices; Operating means; Releasing devices
    • F16K31/02—Actuating devices; Operating means; Releasing devices electric; magnetic
    • F16K31/06—Actuating devices; Operating means; Releasing devices electric; magnetic using a magnet, e.g. diaphragm valves, cutting off by means of a liquid

Definitions

  • the present invention relates to a valve and a method of assembling the valve, such as a valve for controlling a working fluid and a method of assembling the valve.
  • Valves used to control working fluid in various industrial fields are equipped with a valve seat and a valve body that can be moved into and out of contact with the valve seat, and the valve opening is adjusted to control the flow of working fluid. Pressure and flow rate can be controlled.
  • Such valves include spool valves in which a spool, which is a valve body, moves parallel to an opening, which is a valve seat, butterfly valves, in which the valve body has a rotation axis, and furthermore, there are spool valves in which a spool, which is a valve body, moves parallel to an opening, which is a valve seat.
  • a typical valve type is a lift valve that moves orthogonally to the valve.
  • spool valves have a high spool responsiveness to driving force because the direction in which the spool moves and the direction in which the working fluid flows intersect, making it difficult for the fluid pressure of the working fluid to act in the direction in which the spool moves. It has become.
  • a solenoid valve disclosed in Patent Document 1 is known as a spool valve.
  • the solenoid valve of Patent Document 1 includes a cylindrical spool housed in a sleeve, a solenoid portion fixed to one end of the sleeve to drive the spool, a retainer fixed to the other end of the sleeve, and a space between the spool and the retainer. It mainly consists of a biasing means held by a
  • the retainer has a cylindrical shape with a bottom that opens toward the sleeve, and a flange extending toward the outer diameter side is formed at the end on the sleeve side. Furthermore, a caulking piece extending from the end surface of the sleeve toward the retainer is formed around the entire circumference at the outer edge of the end of the sleeve on the retainer side.
  • the solenoid valve of Patent Document 1 has a structure in which the flange is held in the axial direction by the caulking piece and the end surface of the sleeve with the flange in surface contact with the end surface of the sleeve, so that the retainer and the sleeve can be firmly and easily connected.
  • the caulking piece may deform over time, creating a gap between the caulking piece and the flange, and causing damage between the retainer and the sleeve. There was a risk that rattling would occur.
  • the present invention has been made with attention to such problems, and an object of the present invention is to provide a valve and a method for assembling the valve that can maintain a stable fixed state between the retainer and the case for a long period of time.
  • a caulking device comprising a case, a valve body operable within the case, a biasing means for biasing the valve body, and a retainer for holding the biasing means, and provided at one axial end of the case.
  • a space expanding toward an inner diameter side may be formed between the enlarged diameter portion and the case. According to this, an elastic return force can be generated in the retainer by the space with a simple structure.
  • a flange portion extending toward an outer diameter side along an end surface of the case may be formed at the case side end of the enlarged diameter portion. According to this, since the flange part makes surface contact with the end face of the case, the retainer can be stably fixed to the case, and elastic return force is maintained at the connection part between the cylindrical part and the enlarged diameter part. easy to be
  • a connecting portion between the enlarged diameter portion and the flange portion may be configured to be elastically deformable. According to this, since the connecting part between the enlarged diameter part and the cylindrical part and the joint part between the enlarged diameter part and the flange part are deformable, the relative position between the seat surface of the cylindrical part and the case can be precisely adjusted. It can be adjusted to Further, the contact between the caulked end and the enlarged diameter portion is more easily maintained.
  • the outer peripheral surface of the enlarged diameter portion may be a flat truncated conical surface. According to this, a part of the elastic return force of the connecting portion between the cylindrical portion and the enlarged diameter portion acts in the radial direction, so that the inclination of the retainer and the case can be suppressed.
  • the retainer may be made of a thin plate. According to this, the retainer can be easily configured.
  • a caulking device comprising a case, a valve body operable within the case, a biasing means for biasing the valve body, and a retainer for holding the biasing means, and provided at one axial end of the case.
  • the elastic restoring force of the connecting part between the cylindrical part and the enlarged diameter part acts on the crimped end, even if the crimped end deforms over time, the connection between the cylindrical part and the enlarged diameter part remains intact. Due to the elastic return force of the portion, contact between the caulked end and the enlarged diameter portion is maintained, and no wobbling occurs between the case and the retainer. Further, since the seat surface of the cylindrical portion and the case can be positioned at a suitable relative position, the urging force of the urging means can be adjusted with high accuracy.
  • FIG. 2 is a side sectional view showing a solenoid valve in an embodiment of the present invention.
  • FIG. 2 is an enlarged view of the main part of FIG. 1.
  • FIG. (a) is a schematic diagram showing a state in which the retainer is placed at one end of the sleeve
  • (b) is a schematic diagram showing a state in which the retainer is temporarily fixed to one end of the sleeve from the state in (a)
  • (c) is a schematic diagram showing the state in which the retainer is temporarily fixed to one end of the sleeve.
  • FIG. 3 is a schematic diagram showing a state in which the spring and spool are assembled from the state shown in FIG.
  • FIG. 3(b) is a schematic diagram showing a state in which the spring is compressed from the state in FIG. 3(c)
  • FIG. 3(b) is a schematic diagram showing a state in which the spring is further compressed from the state in FIG. 3(a).
  • Embodiments for implementing the valve according to the present invention will be described below based on examples. Although the embodiment will be described using a solenoid valve as an example, it is also applicable to other uses.
  • FIGS. 1 to 4 A solenoid valve according to an embodiment will be described with reference to FIGS. 1 to 4.
  • the description will be made assuming that the right side of the page in FIG. 1 is one axial end side of the solenoid valve, and the left side of the page in FIG. 1 is the other axial end side of the solenoid valve.
  • the solenoid valve 1 of this embodiment is a spool-type solenoid valve, and is used, for example, in a device controlled by hydraulic pressure, such as an automatic transmission of a vehicle.
  • the solenoid valve 1 is used by being attached to a mounting hole in a valve housing on the device side.
  • the solenoid valve 1 is constructed by integrally attaching a valve part 2 to a solenoid part 3, which adjusts the flow rate of a control fluid such as hydraulic oil. Note that FIG. 1 shows the solenoid valve 1 in an off state in which the coil of the solenoid section 3 is not energized.
  • the structure of the solenoid section 3 will be roughly explained.
  • a coil, a stator, a yoke, a movable core, etc. are housed in a cylindrical solenoid case 30.
  • the solenoid valve 1 When the solenoid valve 1 is in the OFF state, the spool 22 is urged toward the other end in the axial direction by the urging force of the spring 29 (see FIG. 1), and the spool 22 and the rod 5 are accordingly moved toward the other end in the axial direction. ing.
  • the valve portion 2 mainly includes a sleeve 21 as a case, a spool 22 as a valve body, a spring 29 as a biasing means, and a retainer 23.
  • the sleeve 21 is provided with openings for various ports such as an input port 24, an output port 25, a discharge port 26, a drain port 27, and a feedback port 28, which are connected to the flow path provided in the mounting hole of the valve housing. .
  • the spool 22 is fluid-tightly accommodated in a through hole 21a formed in the axial direction on the inner diameter side of the sleeve 21.
  • the spool 22 is capable of reciprocating in the axial direction, and by reciprocating the spool 22 in the axial direction, the communication state of various ports is changed and the pressure and flow rate of the hydraulic oil are controlled.
  • the sleeve 21 and the spool 22 are made of materials such as aluminum, iron, stainless steel, and resin.
  • the spring 29 is a coil spring, and urges the spool 22 toward the other end in the axial direction. Further, one end of the spring 29 in the axial direction is held by the retainer 23.
  • the retainer 23 has a cylindrical shape with a bottom.
  • the retainer 23 includes a disk-shaped bottom 23a as a seating surface, a cylindrical side wall 23b as a cylindrical portion extending from the outer edge of the bottom 23a toward the other end in the axial direction, and a side wall 23b.
  • a tapered part 23c as a diameter expanding part that tapers outward from the other end in the axial direction and in the other axial direction, and an annular flange part 23d extending in the outer diameter direction from the other end in the axial direction of the tapered part 23c. , is equipped with.
  • This retainer 23 is formed by pressing a plastically deformable material such as aluminum, iron, or stainless steel, preferably a thin metal plate.
  • One through hole 23e is provided at the center of the bottom portion 23a.
  • the side wall portion 23b extends from the outer edge of the bottom portion 23a toward the other end in the axial direction while being slightly expanded in diameter.
  • the tapered portion 23c is formed by bending the other axial end of the side wall portion 23b as a bent portion P1. That is, the bent portion P1 is a connecting portion between the side wall portion 23b and the tapered portion 23c.
  • the outer circumferential surface 23g of the tapered portion 23c is a truncated conical surface (hereinafter simply referred to as a conical surface) that is flat in the circumferential direction, more specifically, a side surface of the truncated cone.
  • the flange portion 23d is formed by bending the other axial end of the tapered portion 23c as a bent portion P2, and extends substantially parallel to the bottom portion 23a. That is, the bent portion P2 is a connecting portion between the tapered portion 23c and the flange portion 23d.
  • the retainer 23 configured in this manner has a caulked end extending from the outer edge of the end surface 21b toward the one end in the axial direction, with the other end surface 23h of the flange portion 23d in surface contact with the end surface 21b on the one end in the axial direction of the sleeve 21. It is fixed to the sleeve 21 by caulking the caulking piece 21c inward (see FIG. 2).
  • FIGS. 3 and 4 a method for assembling the solenoid valve 1 will be explained using FIGS. 3 and 4.
  • the other end surface 23h of the flange portion 23d of the retainer 23 is brought into contact with the end surface 21b of the sleeve 21.
  • the retainer 23 is bent at two points, the bent portions P1'' and P2'', before being crimped.
  • the other end surface 23h of the flange portion 23d and the end surface 21b of the sleeve 21 are annular surfaces extending perpendicularly to the axial direction, the other end surface 23h of the flange portion 23d and the end surface 21b of the sleeve 21 can be brought into surface contact. .
  • the caulking piece 21c extending from the outer edge of the end surface 21b of the sleeve 21 toward one end in the axial direction is bent inward to temporarily fix the retainer 23 to the sleeve 21.
  • a plurality of caulking pieces 21c are provided in the circumferential direction. Specifically, since the outer edge of the end face 21b is provided in an arc shape except for a part in the circumferential direction, when bending the caulking piece 21c inward, bending stress can be released to the part divided in the circumferential direction. I can do it. Note that the caulking piece 21c may have one annular shape in the circumferential direction, or may have one C-shape in the circumferential direction.
  • the caulking piece 21c When the retainer 23 is temporarily fixed to the sleeve 21, the caulking piece 21c only contacts the outer circumferential surface 23g of the tapered portion 23c of the retainer 23, and the caulking piece 21c only contacts the outer circumferential surface 23g of the tapered portion 23c of the retainer 23. Almost no pressing force is applied.
  • a space S1'' is formed between the inner circumferential surface 23f of the tapered portion 23c and the end surface 21b of the sleeve 21, which expands toward the inner diameter side.
  • the solenoid part 3 is fixed to the other axial end of the sleeve 21 (that is, the state shown in FIG. 3(c) is achieved).
  • One axial end of the spring 29 is adapted to abut and be received by the bottom 23a of the retainer 23.
  • the axial dimension between the end surface 21b of the sleeve 21 and the other end surface of the bottom portion 23a of the retainer 23 is L1.
  • the caulking piece 21c is pressed toward the other end in the axial direction using a jig (not shown) to adjust the biasing force of the spring 29 (see the black arrow).
  • the biasing force of the spring 29 is adjusted while monitoring the biasing force of the spring 29 directly or indirectly using a sensor.
  • the bent portion P1' is elastically deformed from the state shown in FIG. 3(c) in a direction in which the tapered portion 23c expands in diameter with respect to the side wall portion 23b.
  • the bent portion P2' is elastically deformed from the state shown in FIG. 3(c) in a direction in which the tapered portion 23c approaches parallel to the flange portion 23d.
  • the bottom portion 23a approaches the end surface 21b of the sleeve 21 in the axial direction.
  • the bottom portion 23a can be The sleeve 21 can be brought close to the end surface 21b of the sleeve 21 in the axial direction.
  • the axial dimension L2 between the end surface 21b of the sleeve 21 and the other end surface of the bottom 23a of the retainer 23 is shorter than the axial dimension L1 in FIG. 3(c) (L1>L2).
  • the tapered portion 23c is inclined in the direction of expanding the diameter with respect to the side wall portion 23b, resulting in a space S1' that is narrower than the space S1'' (S1'' ⁇ S1').
  • the axial dimension L3 between the end surface 21b of the sleeve 21 and the other end surface of the bottom 23a of the retainer 23 is shorter than the axial dimension L2 in FIG. 4(a) (L2>L3).
  • This axial dimension L3 is a dimension in which the biasing force of the spring 29 is appropriate.
  • bent portions P1' and P2' are elastically deformed to become bent portions P1 and P2 (P1', P2' ⁇ P1, P2). Further, the space S1' becomes a space S1 narrower than the space S1' (S1' ⁇ S1).
  • the outer circumferential surface 23g of the tapered portion 23c is a flat conical surface, and elastic restoring force acts on the caulking piece 21c almost uniformly in the circumferential direction, so that the relative inclination between the sleeve 21 and the retainer 23 is reduced. regulated.
  • a through hole 23e is provided in the bottom portion 23a of the retainer 23, and the through hole 23e can be used as a breathing hole to allow hydraulic oil to flow, allowing the spool 22 to operate smoothly when the solenoid valve 1 is used. It is now possible to do so.
  • the outer circumferential surface of the flange portion 23d may be in contact with the inner surface of the caulking piece 21c, or may be separated from it.
  • the caulking piece 21c is locked to the outer circumferential surface 23g of the tapered portion 23c while the bent portions P1 and P2 are elastically deformed in the compression direction, the biasing force of the spring 29 can be adjusted with precision. be able to.
  • the elastic restoring force of the bent portions P1 and P2 of the retainer 23 acts on the crimping piece 21c, even if the crimping piece 21c deforms, for example, in the opening direction over time, the elastic restoring force of the retainer 23 will cause the crimping piece to 21c and the tapered portion 23c are maintained, and no rattling occurs between the sleeve 21 and the retainer 23.
  • a space S1 expanding inwardly is formed between the end surface 21b of the sleeve 21 and the inner circumferential surface 23f of the tapered portion 23c, and this space S1 can be used as an elastic deformation margin for the bent portions P1 and P2.
  • the bent portions P1 and P2 can be largely elastically deformed. Therefore, the space S1 allows the retainer 23 to generate an elastic return force with a simple structure.
  • a flange portion 23d extending radially outward along the end surface 21b of the sleeve 21 is formed at the other axial end of the tapered portion 23c. According to this, since the flange portion 23d makes surface contact with the end surface 21b of the sleeve 21, the retainer 23 can be stabilized with respect to the sleeve 21, and since the arm length can be ensured long, it is easy to elastically deform the bent portion P1. .
  • the retainer 23 is configured such that the bent portion P2 in addition to the bent portion P1 is elastically deformable, the relative position in the axial direction between the bottom portion 23a of the side wall portion 23b and the sleeve 21 can be finely adjusted. Further, the contact between the caulking piece 21c and the tapered portion 23c is more easily maintained.
  • the elastic return force of the bent portion P1 acts approximately evenly in the circumferential direction of the caulking piece 21c, so that the retainer 23 and the sleeve 21 Relative tilt can be suppressed.
  • the retainer 23 is made of a thin metal plate, the retainer 23 whose bent portions P1 and P2 can be elastically deformed can be easily constructed.
  • the space S1 expanding inwardly is formed between the end surface 21b of the sleeve 21 and the inner circumferential surface 23f of the tapered portion 23c, but the present invention is not limited to this, and for example, A space with a constant width may be formed between the end surface of the sleeve and the inner peripheral surface of the tapered portion.
  • the retainer 23 has an annular flange portion 23d extending in the outer diameter direction from the other end in the axial direction of the tapered portion 23c. You don't have to.
  • the bent portion P2 which is the connecting portion between the flange portion 23d and the tapered portion 23c, is elastically deformed, but the connecting portion between the flange portion and the tapered portion is configured so as not to be elastically deformed. You can leave it there.
  • the outer peripheral surface 23g of the tapered portion 23c is a flat conical surface, but the present invention is not limited to this.
  • a groove may be formed.
  • the tapered portion 23c and the flange portion 23d are formed in an annular shape, but the present invention is not limited to this. Good too.
  • the retainer 23 is made of a plastically deformable thin metal plate, but the retainer 23 is not limited to this, and can be freely formed as long as at least the connecting portion between the cylindrical part and the enlarged diameter part is deformable. Can be changed.
  • the biasing means is a compression spring, but it may be a tension spring.
  • a spool-type valve using a spool as the valve body was described, but the present invention is not limited to this, and a valve using a globe valve, a gate valve, etc. may be used.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Magnetically Actuated Valves (AREA)

Abstract

Provided are: a valve that can maintain, over a long period, the stable secured state of a retainer and a case; and a valve assembly method.　A retainer 23 comprises a cylindrical section 23b having a seating surface 23a for a biasing means 29, and an enlarged diameter section 23c that widens in a tapered shape to the outer diameter side from the end of the cylindrical section 23b on the case 21 side. A crimping end 21c locks with an outer peripheral section 23g of the enlarged diameter section 23c in a state in which a connecting part P1 between the cylindrical section 23b and the enlarged diameter section 23c is elastically deformed.

Description

弁および弁の組み立て方法Valves and how to assemble them
　本発明は、弁および弁の組み立て方法、例えば作動流体を制御する弁およびその弁の組み立て方法に関する。 The present invention relates to a valve and a method of assembling the valve, such as a valve for controlling a working fluid and a method of assembling the valve.
　様々な産業分野で作動流体の制御を行うために利用されている弁は、弁座と、弁座に対して離接可能な弁体を備え、弁開度が調節されることで作動流体の圧力や流量が制御可能となっている。 Valves used to control working fluid in various industrial fields are equipped with a valve seat and a valve body that can be moved into and out of contact with the valve seat, and the valve opening is adjusted to control the flow of working fluid. Pressure and flow rate can be controlled.
　このような弁には、弁座である開口に対して平行に弁体であるスプールが移動するスプール弁、弁体が回動軸を有するバタフライ弁、さらには弁体が弁座である開口に対して直交するように移動するリフト弁が代表的な弁形態として挙げられる。これらの弁の中でもスプール弁は、スプールの移動方向と作動流体が流れる方向が交差しており、スプールの移動方向に作動流体の流体圧が作用し難いため、駆動力に対するスプールの応答性が高くなっている。 Such valves include spool valves in which a spool, which is a valve body, moves parallel to an opening, which is a valve seat, butterfly valves, in which the valve body has a rotation axis, and furthermore, there are spool valves in which a spool, which is a valve body, moves parallel to an opening, which is a valve seat. A typical valve type is a lift valve that moves orthogonally to the valve. Among these valves, spool valves have a high spool responsiveness to driving force because the direction in which the spool moves and the direction in which the working fluid flows intersect, making it difficult for the fluid pressure of the working fluid to act in the direction in which the spool moves. It has become.
　スプール弁として、例えば、特許文献１のソレノイドバルブが知られている。特許文献１のソレノイドバルブは、スリーブに収納された円柱状のスプールと、スリーブの一端に固定されスプールを駆動させるソレノイド部と、スリーブの他端に固定されるリテーナと、スプールとリテーナとの間で保持される付勢手段と、から主に構成されている。 For example, a solenoid valve disclosed in Patent Document 1 is known as a spool valve. The solenoid valve of Patent Document 1 includes a cylindrical spool housed in a sleeve, a solenoid portion fixed to one end of the sleeve to drive the spool, a retainer fixed to the other end of the sleeve, and a space between the spool and the retainer. It mainly consists of a biasing means held by a
　リテーナは、スリーブ側に開口する有底筒状をなし、スリーブ側の端部には外径側に延びるフランジが形成されている。またスリーブのリテーナ側の端部の外縁には、スリーブの端面からリテーナ側に延びるかしめ片が全周に亘って形成されている。リテーナのフランジをかしめ片の内径側に配置した状態で該かしめ片を内径側に折り曲げることで、フランジがかしめ片とスリーブの端面とで軸方向に挟持され、リテーナをスリーブの端部に固定できるようになっている。 The retainer has a cylindrical shape with a bottom that opens toward the sleeve, and a flange extending toward the outer diameter side is formed at the end on the sleeve side. Furthermore, a caulking piece extending from the end surface of the sleeve toward the retainer is formed around the entire circumference at the outer edge of the end of the sleeve on the retainer side. By placing the flange of the retainer on the inner diameter side of the caulking piece and bending the caulking piece inward, the flange is held between the caulking piece and the end face of the sleeve in the axial direction, and the retainer can be fixed to the end of the sleeve. It looks like this.
国際公開２０１０／０２４２８２号（第７頁、第２Ｂ図）International Publication No. 2010/024282 (Page 7, Figure 2B)
　特許文献１のソレノイドバルブにあっては、フランジがスリーブの端面に面当接した状態でかしめ片とスリーブの端面とで軸方向に挟持される構造であるため、強固に且つ簡便にリテーナとスリーブを固定できるようになっているが、このようなソレノイドバルブにあっては、経年によりかしめ片が変形する場合があり、かしめ片とフランジとの間に隙間が生じ、リテーナとスリーブとの間でがたつきが生じる虞があった。 The solenoid valve of Patent Document 1 has a structure in which the flange is held in the axial direction by the caulking piece and the end surface of the sleeve with the flange in surface contact with the end surface of the sleeve, so that the retainer and the sleeve can be firmly and easily connected. However, in such solenoid valves, the caulking piece may deform over time, creating a gap between the caulking piece and the flange, and causing damage between the retainer and the sleeve. There was a risk that rattling would occur.
　本発明は、このような問題点に着目してなされたもので、リテーナとケースとの安定した固定状態を長期間維持できる弁および弁の組み立て方法を提供することを目的とする。 The present invention has been made with attention to such problems, and an object of the present invention is to provide a valve and a method for assembling the valve that can maintain a stable fixed state between the retainer and the case for a long period of time.
　前記課題を解決するために、本発明の弁は、
　ケースと、前記ケース内で動作可能な弁体と、前記弁体を付勢する付勢手段と、前記付勢手段を保持するリテーナと、を備え、前記ケースの軸方向一端に設けられたかしめ端により前記リテーナが該ケースにかしめ固定された弁であって、
　前記リテーナは、前記付勢手段の座面を有する筒状部と、前記筒状部の前記ケース側端から外径側にテーパ状に拡がる拡径部と、を有し、
　前記拡径部の外周部に前記かしめ端が前記筒状部と前記拡径部との連結部分が弾性変形した状態で係止されている。
　これによれば、かしめ端には筒状部と拡径部との連結部分の弾性復帰力が作用しているので、経年によりかしめ端が変形しても筒状部と拡径部との連結部分の弾性復帰力により、かしめ端と拡径部との当接が維持されケースとリテーナとにがたつきが生じない。 In order to solve the above problems, the valve of the present invention has the following features:
A caulking device comprising a case, a valve body operable within the case, a biasing means for biasing the valve body, and a retainer for holding the biasing means, and provided at one axial end of the case. A valve in which the retainer is caulked and fixed to the case by an end,
The retainer has a cylindrical part having a seat surface of the urging means, and an enlarged diameter part that tapers outward from the case side end of the cylindrical part,
The caulked end is locked to the outer peripheral portion of the enlarged diameter portion in a state where a connecting portion between the cylindrical portion and the enlarged diameter portion is elastically deformed.
According to this, since the elastic restoring force of the connecting part between the cylindrical part and the enlarged diameter part acts on the crimped end, even if the crimped end deforms over time, the connection between the cylindrical part and the enlarged diameter part remains intact. Due to the elastic return force of the portion, contact between the caulked end and the enlarged diameter portion is maintained, and no wobbling occurs between the case and the retainer.
　前記拡径部と前記ケースとの間に内径側に拡がる空間が形成されていてもよい。
　これによれば、空間によってリテーナに弾性復帰力を簡素な構造で生じさせることができる。 A space expanding toward an inner diameter side may be formed between the enlarged diameter portion and the case.
According to this, an elastic return force can be generated in the retainer by the space with a simple structure.
　前記拡径部における前記ケース側端には、前記ケースの端面に沿って外径側に延びるフランジ部が形成されていてもよい。
　これによれば、フランジ部がケースの端面に面当接するので、ケースに対してリテーナを安定して固定することができるとともに、筒状部と拡径部との連結部分に弾性復帰力が維持されやすい。 A flange portion extending toward an outer diameter side along an end surface of the case may be formed at the case side end of the enlarged diameter portion.
According to this, since the flange part makes surface contact with the end face of the case, the retainer can be stably fixed to the case, and elastic return force is maintained at the connection part between the cylindrical part and the enlarged diameter part. easy to be
　前記拡径部と前記フランジ部との連結部分が弾性変形可能に構成されていてもよい。
　これによれば、拡径部と筒状部との連結部分と、拡径部とフランジ部との連結部分とが変形可能であるため、筒状部の座面とケースとの相対位置を細やかに調整できる。また、かしめ端と拡径部との当接が一層維持されやすい。 A connecting portion between the enlarged diameter portion and the flange portion may be configured to be elastically deformable.
According to this, since the connecting part between the enlarged diameter part and the cylindrical part and the joint part between the enlarged diameter part and the flange part are deformable, the relative position between the seat surface of the cylindrical part and the case can be precisely adjusted. It can be adjusted to Further, the contact between the caulked end and the enlarged diameter portion is more easily maintained.
　前記拡径部の外周面は、平坦な載頭円錐面をなしていてもよい。
　これによれば、筒状部と拡径部との連結部分の弾性復帰力の一部が径方向に作用するため、リテーナとケースとの傾きを抑えることができる。 The outer peripheral surface of the enlarged diameter portion may be a flat truncated conical surface.
According to this, a part of the elastic return force of the connecting portion between the cylindrical portion and the enlarged diameter portion acts in the radial direction, so that the inclination of the retainer and the case can be suppressed.
　前記リテーナは、薄板により構成されていてもよい。
　これによれば、リテーナを簡便に構成することができる。 The retainer may be made of a thin plate.
According to this, the retainer can be easily configured.
　ケースと、前記ケース内で動作可能な弁体と、前記弁体を付勢する付勢手段と、前記付勢手段を保持するリテーナと、を備え、前記ケースの軸方向一端に設けられたかしめ端により前記リテーナが該ケースにかしめ固定された弁の組み立て方法であって、
　前記リテーナにおける筒状部と該筒状部の前記ケース側端から外径側にテーパ状に拡がる拡径部との連結部分を弾性変形させた状態で、前記かしめ端を前記拡径部の外周面に係止させる。
　これによれば、かしめ端には筒状部と拡径部との連結部分の弾性復帰力が作用しているので、経年によりかしめ端が変形しても筒状部と拡径部との連結部分の弾性復帰力により、かしめ端と拡径部との当接が維持されケースとリテーナとにがたつきが生じない。また、筒状部の座面とケースとを好適な相対位置で位置決めできるため、付勢手段の付勢力を精度よく調整できる。 A caulking device comprising a case, a valve body operable within the case, a biasing means for biasing the valve body, and a retainer for holding the biasing means, and provided at one axial end of the case. A method for assembling a valve in which the retainer is caulked and fixed to the case by an end,
With the connecting portion between the cylindrical portion of the retainer and the enlarged diameter portion tapering outward from the case side end of the cylindrical portion being elastically deformed, the caulked end is connected to the outer periphery of the enlarged diameter portion. Lock it to the surface.
According to this, since the elastic restoring force of the connecting part between the cylindrical part and the enlarged diameter part acts on the crimped end, even if the crimped end deforms over time, the connection between the cylindrical part and the enlarged diameter part remains intact. Due to the elastic return force of the portion, contact between the caulked end and the enlarged diameter portion is maintained, and no wobbling occurs between the case and the retainer. Further, since the seat surface of the cylindrical portion and the case can be positioned at a suitable relative position, the urging force of the urging means can be adjusted with high accuracy.
本発明の実施例におけるソレノイドバルブを示す側断面図である。FIG. 2 is a side sectional view showing a solenoid valve in an embodiment of the present invention. 図１の要部拡大図である。FIG. 2 is an enlarged view of the main part of FIG. 1. FIG. （ａ）はスリーブの一端にリテーナを配置した状態を示す概略図、（ｂ）は（ａ）の状態からスリーブの一端にリテーナを仮固定した状態を示す概略図、（ｃ）は（ｂ）の状態からスプリングとスプールを組み付けた状態を示す概略図である。(a) is a schematic diagram showing a state in which the retainer is placed at one end of the sleeve, (b) is a schematic diagram showing a state in which the retainer is temporarily fixed to one end of the sleeve from the state in (a), and (c) is a schematic diagram showing the state in which the retainer is temporarily fixed to one end of the sleeve. FIG. 3 is a schematic diagram showing a state in which the spring and spool are assembled from the state shown in FIG. 図３（ｃ）の状態からスプリングを圧縮させた状態を示す概略図、（ｂ）は（ａ）の状態からスプリングをさらに圧縮させた状態を示す概略図である。FIG. 3(b) is a schematic diagram showing a state in which the spring is compressed from the state in FIG. 3(c), and FIG. 3(b) is a schematic diagram showing a state in which the spring is further compressed from the state in FIG. 3(a).
　本発明に係る弁を実施するための形態を実施例に基づいて以下に説明する。尚、実施例はソレノイドバルブを例にして説明するが、その他の用途にも適用可能である。 Embodiments for implementing the valve according to the present invention will be described below based on examples. Although the embodiment will be described using a solenoid valve as an example, it is also applicable to other uses.
　実施例に係るソレノイドバルブにつき、図１から図４を参照して説明する。以下、図１の紙面右側をソレノイドバルブの軸方向一端側とし、図１の紙面左側をソレノイドバルブの軸方向他端側として説明する。 A solenoid valve according to an embodiment will be described with reference to FIGS. 1 to 4. Hereinafter, the description will be made assuming that the right side of the page in FIG. 1 is one axial end side of the solenoid valve, and the left side of the page in FIG. 1 is the other axial end side of the solenoid valve.
　図１に示されるように、本実施例のソレノイドバルブ１は、スプールタイプのソレノイドバルブであって、例えば車両の自動変速機等の油圧により制御される装置に用いられるものである。尚、ソレノイドバルブ１は、装置側のバルブハウジングの装着穴に取付けられて使用される。 As shown in FIG. 1, the solenoid valve 1 of this embodiment is a spool-type solenoid valve, and is used, for example, in a device controlled by hydraulic pressure, such as an automatic transmission of a vehicle. The solenoid valve 1 is used by being attached to a mounting hole in a valve housing on the device side.
　ソレノイドバルブ１は、流体、すなわち作動油等の制御流体の流量を調整するバルブ部２がソレノイド部３に一体に取付けられて構成されている。尚、図１は、ソレノイド部３のコイルに通電されていないソレノイドバルブ１のオフ状態を示すものである。 The solenoid valve 1 is constructed by integrally attaching a valve part 2 to a solenoid part 3, which adjusts the flow rate of a control fluid such as hydraulic oil. Note that FIG. 1 shows the solenoid valve 1 in an off state in which the coil of the solenoid section 3 is not energized.
　先ず、ソレノイド部３の構造について概略的に説明する。ソレノイド部３は、筒状のソレノイドケース３０内にコイル、ステータ、ヨーク、可動鉄心等が収容されている。ソレノイドバルブ１のオフ状態において、スプリング２９（図１参照。）の付勢力によりスプール２２が軸方向他端側に付勢され、これに伴いスプール２２およびロッド５が軸方向他端側に移動している。 First, the structure of the solenoid section 3 will be roughly explained. In the solenoid section 3, a coil, a stator, a yoke, a movable core, etc. are housed in a cylindrical solenoid case 30. When the solenoid valve 1 is in the OFF state, the spool 22 is urged toward the other end in the axial direction by the urging force of the spring 29 (see FIG. 1), and the spool 22 and the rod 5 are accordingly moved toward the other end in the axial direction. ing.
　また、ソレノイドバルブ１のオン状態において、コイルへの通電によりソレノイド部３内で磁気回路が形成され、ステータと可動鉄心との間に磁力が生じることにより、可動鉄心およびロッド５が軸方向一端側に向けて軸方向に移動する。これに伴い、スプール２２がスプリング２９を圧縮するように軸方向一端側に移動するようになっている（図示略）。 In addition, when the solenoid valve 1 is in the ON state, a magnetic circuit is formed in the solenoid part 3 by energizing the coil, and a magnetic force is generated between the stator and the movable core, so that the movable core and the rod 5 are moved toward one end in the axial direction. move axially towards. Accordingly, the spool 22 moves toward one end in the axial direction so as to compress the spring 29 (not shown).
　次いで、バルブ部２の構造について説明する。図１に示されるように、バルブ部２は、ケースとしてのスリーブ２１と、弁体としてのスプール２２と、付勢手段としてのスプリング２９と、リテーナ２３と、から主に構成されている。 Next, the structure of the valve part 2 will be explained. As shown in FIG. 1, the valve portion 2 mainly includes a sleeve 21 as a case, a spool 22 as a valve body, a spring 29 as a biasing means, and a retainer 23.
　スリーブ２１には、バルブハウジングの装着穴内に設けられた流路と接続される入力ポート２４、出力ポート２５、排出ポート２６、ドレンポート２７、フィードバックポート２８等の各種ポートの開口が設けられている。 The sleeve 21 is provided with openings for various ports such as an input port 24, an output port 25, a discharge port 26, a drain port 27, and a feedback port 28, which are connected to the flow path provided in the mounting hole of the valve housing. .
　スプール２２は、スリーブ２１の内径側において軸方向に形成される貫通孔２１ａに液密に収容されている。 The spool 22 is fluid-tightly accommodated in a through hole 21a formed in the axial direction on the inner diameter side of the sleeve 21.
　スプール２２は、軸方向に往復移動可能となっており、スプール２２を軸方向に往復移動させることにより、各種ポートの連通状態を変化させ、作動油の圧力や流量を制御するようになっている。尚、スリーブ２１、スプール２２は、アルミ、鉄、ステンレス、樹脂等の材料により形成されている。 The spool 22 is capable of reciprocating in the axial direction, and by reciprocating the spool 22 in the axial direction, the communication state of various ports is changed and the pressure and flow rate of the hydraulic oil are controlled. . Note that the sleeve 21 and the spool 22 are made of materials such as aluminum, iron, stainless steel, and resin.
　スプリング２９は、コイルスプリングであり、スプール２２を軸方向他端側に付勢している。また、スプリング２９の軸方向一端はリテーナ２３に保持されている。 The spring 29 is a coil spring, and urges the spool 22 toward the other end in the axial direction. Further, one end of the spring 29 in the axial direction is held by the retainer 23.
　図２に示されるように、リテーナ２３は、有底筒状をなしている。詳しくは、リテーナ２３は、座面としての円板状の底部２３ａと、底部２３ａの外縁から軸方向他端側に向けて延びる筒状部としての円筒状の側壁部２３ｂと、側壁部２３ｂの軸方向他端側から外径方向および軸方向他方側にテーパ状に拡がる拡径部としてのテーパ部２３ｃと、テーパ部２３ｃの軸方向他端側から外径方向に延びる環状のフランジ部２３ｄと、を備えている。 As shown in FIG. 2, the retainer 23 has a cylindrical shape with a bottom. Specifically, the retainer 23 includes a disk-shaped bottom 23a as a seating surface, a cylindrical side wall 23b as a cylindrical portion extending from the outer edge of the bottom 23a toward the other end in the axial direction, and a side wall 23b. A tapered part 23c as a diameter expanding part that tapers outward from the other end in the axial direction and in the other axial direction, and an annular flange part 23d extending in the outer diameter direction from the other end in the axial direction of the tapered part 23c. , is equipped with.
　このリテーナ２３は、アルミ、鉄、ステンレスなどの塑性変形可能な材料、好適には金属製の薄板をプレス加工することにより形成されている。 This retainer 23 is formed by pressing a plastically deformable material such as aluminum, iron, or stainless steel, preferably a thin metal plate.
　底部２３ａには、その中心に一つの貫通孔２３ｅが設けられている。 One through hole 23e is provided at the center of the bottom portion 23a.
　側壁部２３ｂは、底部２３ａの外縁から軸方向他端側に向けて僅かに拡径しながら延びている。 The side wall portion 23b extends from the outer edge of the bottom portion 23a toward the other end in the axial direction while being slightly expanded in diameter.
　テーパ部２３ｃは、側壁部２３ｂの軸方向他端を屈曲部Ｐ１として曲げ形成されている。すなわち、屈曲部Ｐ１は、側壁部２３ｂとテーパ部２３ｃとの連結部分である。 The tapered portion 23c is formed by bending the other axial end of the side wall portion 23b as a bent portion P1. That is, the bent portion P1 is a connecting portion between the side wall portion 23b and the tapered portion 23c.
　このテーパ部２３ｃの外周面２３ｇは周方向に平坦な載頭円錐面（以降単に円錐面とも称す。）、詳しくは載頭円錐の側面となっている。 The outer circumferential surface 23g of the tapered portion 23c is a truncated conical surface (hereinafter simply referred to as a conical surface) that is flat in the circumferential direction, more specifically, a side surface of the truncated cone.
　フランジ部２３ｄは、テーパ部２３ｃの軸方向他端を屈曲部Ｐ２として曲げ形成されており、底部２３ａと略平行に延びている。すなわち、屈曲部Ｐ２は、テーパ部２３ｃとフランジ部２３ｄとの連結部分である。 The flange portion 23d is formed by bending the other axial end of the tapered portion 23c as a bent portion P2, and extends substantially parallel to the bottom portion 23a. That is, the bent portion P2 is a connecting portion between the tapered portion 23c and the flange portion 23d.
　このように構成されたリテーナ２３は、スリーブ２１の軸方向一端側の端面２１ｂにフランジ部２３ｄの他端面２３ｈを面当接させた状態で、端面２１ｂの外縁から軸方向一端側に延びるかしめ端としてのかしめ片２１ｃを内径側にかしめることで、スリーブ２１に固定されている（図２参照）。 The retainer 23 configured in this manner has a caulked end extending from the outer edge of the end surface 21b toward the one end in the axial direction, with the other end surface 23h of the flange portion 23d in surface contact with the end surface 21b on the one end in the axial direction of the sleeve 21. It is fixed to the sleeve 21 by caulking the caulking piece 21c inward (see FIG. 2).
　次いで、ソレノイドバルブ１の組み立て方法について図３および図４を用いて説明する。
先ず、図３（ａ）に示されるように、リテーナ２３のフランジ部２３ｄの他端面２３ｈをスリーブ２１の端面２１ｂに当接させる。 Next, a method for assembling the solenoid valve 1 will be explained using FIGS. 3 and 4.
First, as shown in FIG. 3(a), the other end surface 23h of the flange portion 23d of the retainer 23 is brought into contact with the end surface 21b of the sleeve 21.
　尚、リテーナ２３は、かしめ前の状態において、屈曲部Ｐ１’’、Ｐ２’’の２箇所で屈曲されている。 It should be noted that the retainer 23 is bent at two points, the bent portions P1'' and P2'', before being crimped.
　フランジ部２３ｄの他端面２３ｈおよびスリーブ２１の端面２１ｂは、軸方向に直交して延びる環状面であるため、フランジ部２３ｄの他端面２３ｈとスリーブ２１の端面２１ｂとを面当接させることができる。 Since the other end surface 23h of the flange portion 23d and the end surface 21b of the sleeve 21 are annular surfaces extending perpendicularly to the axial direction, the other end surface 23h of the flange portion 23d and the end surface 21b of the sleeve 21 can be brought into surface contact. .
　次いで、図３（ｂ）に示されるように、スリーブ２１の端面２１ｂの外縁から軸方向一端側に延びるかしめ片２１ｃを内径側に折り曲げ、リテーナ２３をスリーブ２１に仮固定する。 Next, as shown in FIG. 3(b), the caulking piece 21c extending from the outer edge of the end surface 21b of the sleeve 21 toward one end in the axial direction is bent inward to temporarily fix the retainer 23 to the sleeve 21.
　このかしめ片２１ｃは、周方向に複数設けられている。詳しくは、端面２１ｂの外縁の周方向の一部を除いて円弧状に設けられているため、かしめ片２１ｃを内径側に折り曲げる際には、周方向に分断された部分に曲げ応力を逃がすことができる。尚、かしめ片２１ｃは環状のものが周方向に１つであってもよく、Ｃ字状のものが周方向に１つであってもよい。 A plurality of caulking pieces 21c are provided in the circumferential direction. Specifically, since the outer edge of the end face 21b is provided in an arc shape except for a part in the circumferential direction, when bending the caulking piece 21c inward, bending stress can be released to the part divided in the circumferential direction. I can do it. Note that the caulking piece 21c may have one annular shape in the circumferential direction, or may have one C-shape in the circumferential direction.
　リテーナ２３をスリーブ２１に仮固定した状態にあっては、かしめ片２１ｃはリテーナ２３のテーパ部２３ｃの外周面２３ｇに当接しているのみであり、テーパ部２３ｃを軸方向他端側に向けて押圧する力はほとんど作用していない。 When the retainer 23 is temporarily fixed to the sleeve 21, the caulking piece 21c only contacts the outer circumferential surface 23g of the tapered portion 23c of the retainer 23, and the caulking piece 21c only contacts the outer circumferential surface 23g of the tapered portion 23c of the retainer 23. Almost no pressing force is applied.
　また、リテーナ２３をスリーブ２１に仮固定した状態にあっては、テーパ部２３ｃの内周面２３ｆとスリーブ２１の端面２１ｂとの間に、内径側に拡がる空間Ｓ１’’が形成されている。 Furthermore, when the retainer 23 is temporarily fixed to the sleeve 21, a space S1'' is formed between the inner circumferential surface 23f of the tapered portion 23c and the end surface 21b of the sleeve 21, which expands toward the inner diameter side.
　次いで、スリーブ２１の軸方向他端からスプリング２９およびスプール２２を挿入した後、スリーブ２１の軸方向他端にソレノイド部３を固定する（すなわち図３（ｃ）に示される状態となる。）。スプリング２９の軸方向一端は、リテーナ２３の底部２３ａに当接して受け止められるようになっている。 Next, after inserting the spring 29 and the spool 22 from the other axial end of the sleeve 21, the solenoid part 3 is fixed to the other axial end of the sleeve 21 (that is, the state shown in FIG. 3(c) is achieved). One axial end of the spring 29 is adapted to abut and be received by the bottom 23a of the retainer 23.
　尚、このとき、スリーブ２１の端面２１ｂとリテーナ２３の底部２３ａの他端面との間の軸方向寸法はＬ１となっている。 At this time, the axial dimension between the end surface 21b of the sleeve 21 and the other end surface of the bottom portion 23a of the retainer 23 is L1.
　次いで、図４（ａ）に示されるように、図示しない治具により、かしめ片２１ｃを軸方向他端側に押圧し、スプリング２９の付勢力を調整する（黒矢印参照）。尚、このとき、スプリング２９の付勢力を直接的または間接的にセンサでモニタリングしながらスプリング２９の付勢力を調整する。 Next, as shown in FIG. 4(a), the caulking piece 21c is pressed toward the other end in the axial direction using a jig (not shown) to adjust the biasing force of the spring 29 (see the black arrow). At this time, the biasing force of the spring 29 is adjusted while monitoring the biasing force of the spring 29 directly or indirectly using a sensor.
　リテーナ２３は、かしめ片２１ｃによりテーパ部２３ｃが軸方向他方側に向かって押圧されることで、屈曲部Ｐ１’’，Ｐ２’’が弾性変形して屈曲部Ｐ１’，Ｐ２’となる（Ｐ１’’，Ｐ２’’→Ｐ１’，Ｐ２’）。 In the retainer 23, when the tapered part 23c is pressed toward the other side in the axial direction by the caulking piece 21c, the bent parts P1'' and P2'' are elastically deformed to become bent parts P1' and P2' (P1 '', P2'' → P1', P2').
　詳しくは、屈曲部Ｐ１’は、図３（ｃ）の状態からテーパ部２３ｃが側壁部２３ｂに対して拡径する方向に弾性変形している。屈曲部Ｐ２’は、図３（ｃ）の状態からテーパ部２３ｃがフランジ部２３ｄに対して平行に近づく方向に弾性変形している。これにより底部２３ａは、スリーブ２１の端面２１ｂに対して軸方向に近接する。 Specifically, the bent portion P1' is elastically deformed from the state shown in FIG. 3(c) in a direction in which the tapered portion 23c expands in diameter with respect to the side wall portion 23b. The bent portion P2' is elastically deformed from the state shown in FIG. 3(c) in a direction in which the tapered portion 23c approaches parallel to the flange portion 23d. As a result, the bottom portion 23a approaches the end surface 21b of the sleeve 21 in the axial direction.
　言い換えれば、テーパ部２３ｃの内周面２３ｆとスリーブ２１の端面２１ｂとの間に形成された空間Ｓ１’’を屈曲部Ｐ１’’，Ｐ２’’の弾性変形代として利用できるため、底部２３ａをスリーブ２１の端面２１ｂに対して軸方向に近接させることができるようになっている。 In other words, since the space S1'' formed between the inner circumferential surface 23f of the tapered portion 23c and the end surface 21b of the sleeve 21 can be used as an elastic deformation margin for the bent portions P1'' and P2'', the bottom portion 23a can be The sleeve 21 can be brought close to the end surface 21b of the sleeve 21 in the axial direction.
　スリーブ２１の端面２１ｂとリテーナ２３の底部２３ａの他端面との間の軸方向寸法Ｌ２は、図３（ｃ）のときの軸方向寸法Ｌ１よりも短くなる（Ｌ１＞Ｌ２）。 The axial dimension L2 between the end surface 21b of the sleeve 21 and the other end surface of the bottom 23a of the retainer 23 is shorter than the axial dimension L1 in FIG. 3(c) (L1>L2).
　尚、図４（ａ）の状態にあっては、テーパ部２３ｃが側壁部２３ｂに対して拡径する方向に傾斜することにより空間Ｓ１’’よりも狭い空間Ｓ１’となる（Ｓ１’’→Ｓ１’）。 In the state shown in FIG. 4(a), the tapered portion 23c is inclined in the direction of expanding the diameter with respect to the side wall portion 23b, resulting in a space S1' that is narrower than the space S1'' (S1''→ S1').
　図４（ｂ）に示されるように、図示しない治具により、かしめ片２１ｃを軸方向他端側にさらに押圧することで、底部２３ａは、スリーブ２１の端面２１ｂに対して軸方向にさらに近接する。 As shown in FIG. 4(b), by further pressing the caulking piece 21c toward the other end in the axial direction using a jig (not shown), the bottom portion 23a is brought closer to the end surface 21b of the sleeve 21 in the axial direction. do.
　言い換えれば、スリーブ２１の端面２１ｂとリテーナ２３の底部２３ａの他端面との間の軸方向寸法Ｌ３は、図４（ａ）のときの軸方向寸法Ｌ２よりも短くなる（Ｌ２＞Ｌ３）。この軸方向寸法Ｌ３は、スプリング２９の付勢力が適正となる寸法である。 In other words, the axial dimension L3 between the end surface 21b of the sleeve 21 and the other end surface of the bottom 23a of the retainer 23 is shorter than the axial dimension L2 in FIG. 4(a) (L2>L3). This axial dimension L3 is a dimension in which the biasing force of the spring 29 is appropriate.
　尚、屈曲部Ｐ１’，Ｐ２’は弾性変形して屈曲部Ｐ１，Ｐ２となる（Ｐ１’，Ｐ２’→Ｐ１，Ｐ２）。また、空間Ｓ１’は、該空間Ｓ１’よりも狭い空間Ｓ１となる（Ｓ１’→Ｓ１）。 Note that the bent portions P1' and P2' are elastically deformed to become bent portions P1 and P2 (P1', P2'→P1, P2). Further, the space S1' becomes a space S1 narrower than the space S1' (S1'→S1).
　その後、図示しない治具を撤去することで、スプリング２９の付勢力が適正な状態でソレノイドバルブ１の組み立てが完了する。 Thereafter, by removing the jig (not shown), assembly of the solenoid valve 1 is completed with the biasing force of the spring 29 in an appropriate state.
　この状態にあっては、屈曲部Ｐ１，Ｐ２が弾性復帰しようとするが、テーパ部２３ｃの外周面２３ｇが塑性変形されたかしめ片２１ｃに係止されるため、リテーナ２３が軸方向に圧縮された状態が維持される。すなわち、スリーブ２１の端面２１ｂとかしめ片２１ｃとの間には、リテーナ２３における屈曲部Ｐ１，Ｐ２の弾性復帰力（白矢印参照）が作用するようになっている。 In this state, the bent portions P1 and P2 try to return elastically, but the retainer 23 is compressed in the axial direction because the outer circumferential surface 23g of the tapered portion 23c is retained by the plastically deformed caulking piece 21c. The current state is maintained. That is, the elastic return force (see white arrow) of the bent portions P1 and P2 of the retainer 23 acts between the end surface 21b of the sleeve 21 and the caulking piece 21c.
　テーパ部２３ｃの外周面２３ｇは、平坦な円錐面をなしており、かしめ片２１ｃに対して周方向に略均等に弾性復帰力が作用するため、スリーブ２１とリテーナ２３との相対的な傾きが規制されている。 The outer circumferential surface 23g of the tapered portion 23c is a flat conical surface, and elastic restoring force acts on the caulking piece 21c almost uniformly in the circumferential direction, so that the relative inclination between the sleeve 21 and the retainer 23 is reduced. regulated.
　また、リテーナ２３の底部２３ａには、貫通孔２３ｅが設けられており、貫通孔２３ｅを呼吸孔として作動油を流通させることができるため、ソレノイドバルブ１の使用時においてスプール２２を円滑に動作させることができるようになっている。 Further, a through hole 23e is provided in the bottom portion 23a of the retainer 23, and the through hole 23e can be used as a breathing hole to allow hydraulic oil to flow, allowing the spool 22 to operate smoothly when the solenoid valve 1 is used. It is now possible to do so.
　尚、上述したスプリング２９の付勢力を調整する際には、フランジ部２３ｄの外周面がかしめ片２１ｃの内側面に当接してもよいし、離間していてもよい。 Incidentally, when adjusting the biasing force of the spring 29 described above, the outer circumferential surface of the flange portion 23d may be in contact with the inner surface of the caulking piece 21c, or may be separated from it.
　以上説明したように、屈曲部Ｐ１，Ｐ２を圧縮方向に弾性変形させた状態でかしめ片２１ｃをテーパ部２３ｃの外周面２３ｇに係止させているため、スプリング２９の付勢力を精度よく調整することができる。 As explained above, since the caulking piece 21c is locked to the outer circumferential surface 23g of the tapered portion 23c while the bent portions P1 and P2 are elastically deformed in the compression direction, the biasing force of the spring 29 can be adjusted with precision. be able to.
　また、かしめ片２１ｃにはリテーナ２３における屈曲部Ｐ１，Ｐ２の弾性復帰力が作用しているため、経年によりかしめ片２１ｃが例えば開く方向に変形してもリテーナ２３の弾性復帰力により、かしめ片２１ｃとテーパ部２３ｃとの当接が維持されスリーブ２１とリテーナ２３とにがたつきが生じない。 Furthermore, since the elastic restoring force of the bent portions P1 and P2 of the retainer 23 acts on the crimping piece 21c, even if the crimping piece 21c deforms, for example, in the opening direction over time, the elastic restoring force of the retainer 23 will cause the crimping piece to 21c and the tapered portion 23c are maintained, and no rattling occurs between the sleeve 21 and the retainer 23.
　また、スリーブ２１の端面２１ｂとテーパ部２３ｃの内周面２３ｆとの間に内径側に拡がる空間Ｓ１が形成されており、該空間Ｓ１を屈曲部Ｐ１，Ｐ２の弾性変形代として利用できるので、屈曲部Ｐ１，Ｐ２を大きく弾性変形させることができる。したがって、空間Ｓ１によりリテーナ２３に弾性復帰力を簡便な構造で生じさせることができる。 Further, a space S1 expanding inwardly is formed between the end surface 21b of the sleeve 21 and the inner circumferential surface 23f of the tapered portion 23c, and this space S1 can be used as an elastic deformation margin for the bent portions P1 and P2. The bent portions P1 and P2 can be largely elastically deformed. Therefore, the space S1 allows the retainer 23 to generate an elastic return force with a simple structure.
　また、テーパ部２３ｃにおける軸方向他端には、スリーブ２１の端面２１ｂに沿って外径側に延びるフランジ部２３ｄが形成されている。これによれば、フランジ部２３ｄがスリーブ２１の端面２１ｂに面当接するので、スリーブ２１に対してリテーナ２３を安定させることができるとともに、アーム長を長く確保できるため屈曲部Ｐ１を弾性変形させやすい。 Further, a flange portion 23d extending radially outward along the end surface 21b of the sleeve 21 is formed at the other axial end of the tapered portion 23c. According to this, since the flange portion 23d makes surface contact with the end surface 21b of the sleeve 21, the retainer 23 can be stabilized with respect to the sleeve 21, and since the arm length can be ensured long, it is easy to elastically deform the bent portion P1. .
　また、リテーナ２３は、屈曲部Ｐ１に加えて屈曲部Ｐ２も弾性変形可能に構成されているため、側壁部２３ｂの底部２３ａとスリーブ２１との軸方向の相対位置を細やかに調整できる。また、かしめ片２１ｃとテーパ部２３ｃとの当接が一層維持されやすい。 Further, since the retainer 23 is configured such that the bent portion P2 in addition to the bent portion P1 is elastically deformable, the relative position in the axial direction between the bottom portion 23a of the side wall portion 23b and the sleeve 21 can be finely adjusted. Further, the contact between the caulking piece 21c and the tapered portion 23c is more easily maintained.
　また、テーパ部２３ｃの外周面２３ｇは、平坦な円錐面をなしているため、屈曲部Ｐ１の弾性復帰力がかしめ片２１ｃの周方向に略均等に作用するため、リテーナ２３とスリーブ２１との相対的な傾きを抑えることができる。 Further, since the outer circumferential surface 23g of the tapered portion 23c is a flat conical surface, the elastic return force of the bent portion P1 acts approximately evenly in the circumferential direction of the caulking piece 21c, so that the retainer 23 and the sleeve 21 Relative tilt can be suppressed.
　また、リテーナ２３は、金属製の薄板により構成されているため、屈曲部Ｐ１，Ｐ２が弾性変形可能なリテーナ２３を簡便に構成することができる。 Further, since the retainer 23 is made of a thin metal plate, the retainer 23 whose bent portions P1 and P2 can be elastically deformed can be easily constructed.
　以上、本発明の実施例を図面により説明してきたが、具体的な構成はこれら実施例に限られるものではなく、本発明の要旨を逸脱しない範囲における変更や追加があっても本発明に含まれる。 Although the embodiments of the present invention have been described above with reference to the drawings, the specific configuration is not limited to these embodiments, and any changes or additions that do not depart from the gist of the present invention are included in the present invention. It will be done.
　例えば、前記実施例では、スリーブ２１の端面２１ｂとテーパ部２３ｃの内周面２３ｆとの間に、内径側に拡がる空間Ｓ１が形成されている形態を例示したが、これに限られず、例えば、スリーブの端面とテーパ部の内周面との間に一定の幅の空間が形成されていてもよい。 For example, in the embodiment described above, the space S1 expanding inwardly is formed between the end surface 21b of the sleeve 21 and the inner circumferential surface 23f of the tapered portion 23c, but the present invention is not limited to this, and for example, A space with a constant width may be formed between the end surface of the sleeve and the inner peripheral surface of the tapered portion.
　また、前記実施例では、リテーナ２３は、テーパ部２３ｃの軸方向他端側から外径方向に延びる環状のフランジ部２３ｄを有する形態を例示したが、これに限られず、フランジ部が設けられていなくてもよい。 Further, in the embodiment described above, the retainer 23 has an annular flange portion 23d extending in the outer diameter direction from the other end in the axial direction of the tapered portion 23c. You don't have to.
　また、前記実施例では、フランジ部２３ｄとテーパ部２３ｃとの連結部分である屈曲部Ｐ２が弾性変形する形態を例示したが、フランジ部とテーパ部との連結部分が弾性変形しないように構成されていてもよい。 Further, in the above embodiment, the bent portion P2, which is the connecting portion between the flange portion 23d and the tapered portion 23c, is elastically deformed, but the connecting portion between the flange portion and the tapered portion is configured so as not to be elastically deformed. You can leave it there.
　また、前記実施例では、テーパ部２３ｃの外周面２３ｇが平坦な円錐面となっている形態を例示したが、これに限られず、例えば、テーパ部の外周面にかしめ端の端部が係合する溝が形成されていてもよい。 Further, in the above embodiment, the outer peripheral surface 23g of the tapered portion 23c is a flat conical surface, but the present invention is not limited to this. A groove may be formed.
　また、前記実施例では、テーパ部２３ｃおよびフランジ部２３ｄが環状に形成されている形態を例示したが、これに限られず、拡径部およびフランジ部は、周方向に複数設けられる片であってもよい。 Further, in the embodiment described above, the tapered portion 23c and the flange portion 23d are formed in an annular shape, but the present invention is not limited to this. Good too.
　また、前記実施例では、リテーナ２３が塑性変形可能な金属製の薄板で構成されていたが、これに限らず、少なくとも筒状部と拡径部との連結部分が変形可能であれば自由に変更できる。 Further, in the above embodiment, the retainer 23 is made of a plastically deformable thin metal plate, but the retainer 23 is not limited to this, and can be freely formed as long as at least the connecting portion between the cylindrical part and the enlarged diameter part is deformable. Can be changed.
　また、前記実施例では、付勢手段が圧縮ばねである形態を例示したが、引きばねであってもよい。 Furthermore, in the above embodiments, the biasing means is a compression spring, but it may be a tension spring.
　また、前記実施例では、弁体にスプールを用いるスプールタイプの弁として説明したが、これに限られず、グローブ弁やゲート弁等を用いた弁であってもよい。 Further, in the above embodiment, a spool-type valve using a spool as the valve body was described, but the present invention is not limited to this, and a valve using a globe valve, a gate valve, etc. may be used.
１　　　　　　　　ソレノイドバルブ（弁）
２１　　　　　　　スリーブ（ケース）
２１ｂ　　　　　　端面
２１ｃ　　　　　　かしめ片（かしめ端）
２２　　　　　　　スプール（弁体）
２３　　　　　　　リテーナ
２３ａ　　　　　　底部（座面）
２３ｂ　　　　　　側壁部（筒状部）
２３ｃ　　　　　　テーパ部（拡径部）
２３ｄ　　　　　　フランジ部
２９　　　　　　　スプリング（付勢手段）
Ｐ１，Ｐ２　　　　屈曲部
Ｓ１　　　　　　　空間 1 Solenoid valve (valve)
21 Sleeve (case)
21b End face 21c Caulking piece (caulking end)
22 Spool (valve body)
23 Retainer 23a Bottom (seat surface)
23b Side wall part (cylindrical part)
23c Tapered part (expanded diameter part)
23d Flange portion 29 Spring (biasing means)
P1, P2 Bent part S1 Space

Claims (7)

  1. 　ケースと、前記ケース内で動作可能な弁体と、前記弁体を付勢する付勢手段と、前記付勢手段を保持するリテーナと、を備え、前記ケースの軸方向一端に設けられたかしめ端により前記リテーナが該ケースにかしめ固定された弁であって、
    　前記リテーナは、前記付勢手段の座面を有する筒状部と、前記筒状部の前記ケース側端から外径側にテーパ状に拡がる拡径部と、を有し、
    　前記拡径部の外周部に前記かしめ端が前記筒状部と前記拡径部との連結部分が弾性変形した状態で係止されている弁。     A caulking device comprising a case, a valve body operable within the case, a biasing means for biasing the valve body, and a retainer for holding the biasing means, and provided at one axial end of the case. A valve in which the retainer is caulked and fixed to the case by an end,
    The retainer has a cylindrical part having a seat surface of the urging means, and an enlarged diameter part that tapers outward from the case side end of the cylindrical part,
    The valve wherein the caulked end is locked to an outer peripheral portion of the enlarged diameter portion in a state where a connecting portion between the cylindrical portion and the enlarged diameter portion is elastically deformed.
  2. 　前記拡径部と前記ケースとの間に内径側に拡がる空間が形成されている請求項１に記載の弁。 The valve according to claim 1, wherein a space expanding toward the inner diameter side is formed between the enlarged diameter portion and the case.
  3. 　前記拡径部における前記ケース側端には、前記ケースの端面に沿って外径側に延びるフランジ部が形成されている請求項１または２に記載の弁。 The valve according to claim 1 or 2, wherein a flange portion extending radially outward along an end surface of the case is formed at the case side end of the enlarged diameter portion.
  4. 　前記拡径部と前記フランジ部との連結部分が弾性変形可能に構成されている請求項３に記載の弁。 The valve according to claim 3, wherein a connecting portion between the enlarged diameter portion and the flange portion is configured to be elastically deformable.
  5. 　前記拡径部の外周面は、平坦な載頭円錐面をなしている請求項１に記載の弁。 The valve according to claim 1, wherein the outer peripheral surface of the enlarged diameter portion is a flat truncated conical surface.
  6. 　前記リテーナは、薄板により構成されている請求項１に記載の弁。 The valve according to claim 1, wherein the retainer is made of a thin plate.
  7. 　ケースと、前記ケース内で動作可能な弁体と、前記弁体を付勢する付勢手段と、前記付勢手段を保持するリテーナと、を備え、前記ケースの軸方向一端に設けられたかしめ端により前記リテーナが該ケースにかしめ固定された弁の組み立て方法であって、
    　前記リテーナにおける筒状部と該筒状部の前記ケース側端から外径側にテーパ状に拡がる拡径部との連結部分を弾性変形させた状態で、前記かしめ端を前記拡径部の外周面に係止させる弁の組み立て方法。     A caulking device comprising a case, a valve body operable within the case, a biasing means for biasing the valve body, and a retainer for holding the biasing means, and provided at one axial end of the case. A method for assembling a valve in which the retainer is caulked and fixed to the case by an end,
    With the connecting portion between the cylindrical portion of the retainer and the enlarged diameter portion tapering outward from the case side end of the cylindrical portion being elastically deformed, the caulked end is connected to the outer periphery of the enlarged diameter portion. How to assemble a valve that locks onto a surface.
PCT/JP2023/012492 2022-04-04 2023-03-28 Valve and valve assembly method WO2023195385A1 (en)

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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002327856A (en) * 2001-04-27 2002-11-15 Toyoda Mach Works Ltd Solenoid valve
JP2010003447A (en) * 2008-06-18 2010-01-07 Dx Antenna Co Ltd Fixing structure of connection plug
JP2019044843A (en) * 2017-08-31 2019-03-22 イーグル工業株式会社 Spool valve
JP2020193637A (en) * 2019-05-24 2020-12-03 イーグル工業株式会社 Solenoid valve

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002327856A (en) * 2001-04-27 2002-11-15 Toyoda Mach Works Ltd Solenoid valve
JP2010003447A (en) * 2008-06-18 2010-01-07 Dx Antenna Co Ltd Fixing structure of connection plug
JP2019044843A (en) * 2017-08-31 2019-03-22 イーグル工業株式会社 Spool valve
JP2020193637A (en) * 2019-05-24 2020-12-03 イーグル工業株式会社 Solenoid valve

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